Dustproof door assembly and power supply track

Abstract

The present application discloses a dustproof door assembly and a power supply track. Multiple first dustproof doors (3) and multiple second dustproof doors (2) are slidably disposed on a dustproof door support (1), the first dustproof doors (3) and the second dustproof doors (2) being alternately arranged around a track insertion port (71), and closing the track insertion port (71), driven by an elastic piece (4); first linkage structures (34) are disposed on two sides of each first dustproof door (3), second linkage structures (24) are disposed on two sides of each second dustproof door (2), and the second dustproof doors (2), by means of the second linkage structures (24) and the first linkage structures (34), have a one-way linkage with the first dustproof doors (3) in a retreating stroke; that is, when a first dustproof door (3) slides and retracts away from one side of the track insertion port (71), an adjacent second dustproof door (2) is driven to slide together away from the track insertion port (71), whereas when the second dustproof door (2) slides away from the track insertion port (71), the second dustproof door (2) does not link with the adjacent first dustproof door (3), and the first dustproof door (3) remains at the original position thereof.

Description

Dustproof door assembly and power track

[0001] The present application claims priority to Chinese Patent Application No. CN202410427026.8, filed on April 10, 2024, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0002] The present application relates to the field of low-voltage electrical appliances, in particular to a dustproof door assembly, a power track and a track socket. BACKGROUND

[0003] With the improvement of living quality, people need more and more types of electrical appliances, and therefore more and more wall sockets. The number of ordinary wall sockets is often not enough, and if too many wall sockets are installed, the appearance will be affected. Therefore, track sockets have emerged. The track socket includes an adapter and a long strip-shaped track. The track is installed on the wall, and the track socket in the track is electrically connected with the power supply line on the wall. The adapter has a conductive sheet and a socket. When using the track socket, the conductive sheet of the adapter is inserted into the track slot of the track and contacts the track socket in the track slot. Then the plug of the electrical appliance is inserted into the socket of the adapter, and the electrical appliance can take power from the adapter. The advantage of the track socket is that the adapter can be moved anywhere within a range by sliding in the track, so that the adapter can supply power to electrical appliances in multiple positions.

[0004] However, the shell of the power track has a track opening for the adapter to be inserted, and dust can easily enter the interior of the power track through the track opening, causing wear to the internal conductive plate and reducing the service life of the power track. SUMMARY

[0005] The present application aims to overcome the defects of the prior art and provide a dustproof door assembly, a power track and a track socket.

[0006] To achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0007] The dustproof door assembly comprises a plurality of first dustproof doors, a dustproof door support and an elastic member, the dustproof door support is arranged on one side of a rail insertion opening, and further comprises a plurality of second dustproof doors, the first dustproof doors and the second dustproof doors are slidably arranged on the dustproof door support, the first dustproof doors and the second dustproof doors are alternately arranged along the rail insertion opening and close the rail insertion opening under the driving of the elastic member; the first dustproof doors are provided with first linkage structures on two sides thereof, the second dustproof doors are provided with second linkage structures on two sides thereof, the second dustproof doors are unidirectionally linked with the first dustproof doors through the second linkage structures and the first linkage structures in a retreat stroke, that is, when the first dustproof doors slide away from one side of the rail insertion opening, the first dustproof doors drive the adjacent second dustproof doors to slide away from the rail insertion opening, and when the second dustproof doors slide away from the rail insertion opening, the second dustproof doors do not link the adjacent first dustproof doors, and the first dustproof doors remain in the original positions.

[0008] Optionally, each of the first dustproof doors is provided with an insertion driving slope at a driving end of the rail insertion opening, and each of the first dustproof doors is further provided with a sliding driving slope on each of two sides of the driving end.

[0009] Optionally, the driving end of each of the second dustproof doors is also provided with a second insertion driving slope.

[0010] Optionally, the elastic member is arranged between the tail end of the second dustproof door and the dustproof door support, and when the second dustproof door slides to close the rail insertion opening, the second dustproof door drives the adjacent first dustproof door to slide to close the rail insertion opening.

[0011] Optionally, the elastic member is arranged between the tail end of the first dustproof door and the dustproof door support and between the tail end of the second dustproof door and the dustproof door support.

[0012] Optionally, the first linkage structure is a first linkage surface arranged on two sides of the first dustproof door, the second linkage structure is a second linkage surface arranged on two sides of the second dustproof door, and the first linkage surface and the second linkage surface are oppositely arranged.

[0013] Optionally, the bottom of each of the two sides of the first dustproof door is provided with a notch to form a first step, the side wall of the first step forms the first linkage surface, the top of each of the two sides of the second dustproof door is provided with a notch to form a second step, the side wall of the second step forms the second linkage surface, and the two sides of the first dustproof door are partially overlapped on the second dustproof door, so that the first linkage surface and the second linkage surface are oppositely arranged in the retreat stroke.

[0014] Optionally, the two sides of the first dustproof door are V-shaped surfaces, the first linkage surface is arranged perpendicularly to the two sides of the first dustproof door, the two sides of the second dustproof door are also V-shaped surfaces, and the second linkage surface is arranged perpendicularly to the two sides of the second dustproof door.

[0015] Optionally, the first linkage surface and the second linkage surface are arranged in a clearance when the first dustproof door and the second dustproof door are closed under the driving of the elastic member.

[0016] Optionally, the dustproof door support is provided with a plurality of first support units and a plurality of second support units, each first dustproof door is arranged in a first support unit to slide, and each second dustproof door is arranged in a second support unit to slide.

[0017] Optionally, the first support unit is provided with a first sliding surface for the first dustproof door to slide and a first limiting boss, and the bottom of the first dustproof door is provided with a first sliding part corresponding to the first sliding surface and a first limiting sliding groove corresponding to the first limiting boss.

[0018] The second support unit is provided with a second sliding surface for the second dustproof door to slide and a second limiting boss, and the bottom of the second dustproof door is provided with a second sliding part corresponding to the second sliding surface and a second limiting sliding groove corresponding to the second limiting boss.

[0019] Optionally, the first limiting sliding groove is provided with a first limiting surface corresponding to the end of the dustproof door driving end, and the end of the first limiting boss is limited to limit the return stroke of the first dustproof door.

[0020] The second limiting sliding groove is provided with a second limiting surface corresponding to the end of the second dustproof door driving end, and the end of the second limiting boss is limited to limit the return stroke of the second dustproof door.

[0021] Optionally, the first support unit is provided with a first limiting pressing plate opposite to the first sliding surface, the first limiting pressing plate is provided with a third limiting sliding groove, and the upper part of the first dustproof door is provided with a third limiting boss corresponding to the third limiting sliding groove.

[0022] The second support unit is provided with a second limiting pressing plate opposite to the second sliding surface, the second limiting pressing plate is provided with a fourth limiting sliding groove, and the upper part of the second dustproof door is provided with a fourth limiting boss corresponding to the fourth limiting sliding groove.

[0023] Optionally, the elastic member is a columnar spring, the tail end of the second dustproof door is provided with a limiting protrusion column, the second support unit is provided with a limiting hole, one end of the columnar spring is sleeved on the limiting protrusion column, and the other end is embedded in the limiting hole.

[0024] Optionally, dustproof door supports are arranged on both sides of the track insertion opening, and a plurality of dustproof doors are symmetrically arranged on the dustproof door supports on the two sides, and the dustproof doors on the two sides jointly close the track insertion opening.

[0025] The application also provides a power track, which comprises a track main body and a track outer frame, the track outer frame is provided with a cavity, the track main body is arranged in the cavity, and the track main body is further provided with any dustproof door assembly described above.

[0026] The application also provides a track socket, which comprises an adapter and the power track described above, and the adapter is in pluggable connection with the power track.

[0027] The dustproof door assembly for the track socket is characterized in that the first dustproof door and the second dustproof door are alternately arranged along the track insertion opening, the two sides of the first dustproof door are provided with a first linkage structure, the two sides of the second dustproof door are provided with a second linkage structure, and the second dustproof door is in one-way linkage with the first dustproof door through the second linkage structure and the first linkage structure in the retraction stroke, so that the first dustproof door retracts to slide and drives the second dustproof door to slide together, thereby opening a space for the adapter to be inserted and initially slid, and the adjacent first dustproof door remains closed without being linked with the second dustproof door, thereby effectively protecting the inside of the track socket.

[0028] As a further improvement, each first dustproof door is provided with an insertion driving slope corresponding to the driving end of the track insertion opening, and the two sides of the driving end of each first dustproof door are further provided with a sliding driving slope, respectively, when the adapter is inserted, the adapter contacts the driving slope, and under the action of continuous pressure on the driving slope, the dustproof door slides to retract to one side away from the track insertion opening, thereby opening a space for the adapter to continue to be inserted. When the adapter needs to be transversely slid, the pin of the adapter contacts the sliding driving slope and generates continuous pressure on the sliding driving slope, and under the action of the continuous pressure, the first dustproof door slides to retract to one side away from the track insertion opening, thereby opening a space for the adapter to continue to slide. BRIEF DESCRIPTION OF DRAWINGS

[0029] FIG. 1 is a structural schematic view of a track socket according to an embodiment of the application;

[0030] FIG. 2 is a sectional structural schematic view of a power track according to a first embodiment of the application;

[0031] FIG. 3 is a structural schematic view of a track frame according to the first embodiment of the application.

[0032] Fig. 4 is a schematic diagram of the dustproof door setting mode of the first embodiment of the present application;

[0033] Fig. 5 is a schematic diagram of the cross-sectional structure of the power rail of the second embodiment of the present application;

[0034] Fig. 6 is a schematic diagram of the structure of the dustproof door assembly of the second embodiment of the present application;

[0035] Fig. 7 is a schematic diagram of the structure of the dustproof door assembly of the second embodiment of the present application;

[0036] Fig. 8 is a schematic diagram of the structure of the dustproof door assembly of the second embodiment of the present application (another view);

[0037] Fig. 9 is an A-A cross-sectional view of Fig. 8;

[0038] Fig. 10 is a schematic diagram of the structure of the first dustproof door of the second embodiment of the present application;

[0039] Fig. 11 is a schematic diagram of the structure of the first dustproof door of the second embodiment of the present application (another view);

[0040] Fig. 12 is a schematic diagram of the structure of the second dustproof door of the second embodiment of the present application;

[0041] Fig. 13 is a schematic diagram of the structure of the second dustproof door of the second embodiment of the present application (another view);

[0042] Fig. 14 is a schematic diagram of the structure of the dustproof door support of the embodiment of the present application;

[0043] Fig. 15 is a schematic diagram of the state of the dustproof door driven by the adapter of the embodiment of the present application.

[0044] In the drawings: dustproof door support 1, first support unit 10a, second support unit 10b, limiting hole 11, fourth limiting sliding groove 12, second limiting boss 13, third limiting sliding groove 14, first limiting boss 15, first sliding surface 16, second sliding surface 17, first limiting pressing plate 18, second limiting pressing plate 19; second dustproof door 2, second insertion direction driving slope 21, fourth limiting boss 22, second linkage surface 24 (second linkage structure 24), second limiting sliding groove 25, second sliding part 26, limiting boss 27; first dustproof door 3, sliding direction driving slope 31, third limiting boss 32, insertion direction driving slope 33, first linkage surface 34 (first linkage structure 34), first limiting sliding groove 35, first limiting surface 351, first sliding part 36; elastic member 4; rail frame 5, cavity 51; rail main body 7, rail insertion opening 71; adapter 9. DETAILED DESCRIPTION

[0045] The following embodiments, given in conjunction with the accompanying drawings, further illustrate the specific implementation of the dustproof door assembly of the present application. The dustproof door assembly of the present application is not limited to the description of the following embodiments.

[0046] As shown in FIG. 1, the track socket provided in the present embodiment includes a power track and an adapter 9, which is pluggable connected with the power track.

[0047] As shown in FIG. 2 and FIG. 3, the power track of the present embodiment includes a track outer frame 4, a track main body 7 and a dustproof door assembly, the track outer frame 4 is provided with a cavity 41, the track main body 7 and the dustproof door assembly are arranged in the cavity 41, wherein the track main body 7 generally includes an insulating support and an electrode conductive sheet arranged in the insulating support, to realize the conductive connection with the adapter 9 and realize the insulation with the track outer frame 4 (usually the track outer frame is a hardware profile, of course the track outer frame can also be an insulating material).

[0048] In the present embodiment, the adapter 9 can be arranged on the power track by increasing or decreasing the number of adapters 9, and can be slid in the area of the power track with the electrode conductive sheet.

[0049] As shown in FIG. 2, the power track includes two track main bodies 7 and the two track main bodies 7 are oppositely arranged in the cavity 41 and form a track insertion port 71, and the corresponding position of the track outer frame 4 is also provided with an opening to facilitate the insertion of the adapter 9. The dustproof door assembly of the present embodiment is mainly used for protecting the track insertion port 71, and always keeps the track insertion port 71 closed when there is no adapter 9 inserted, and only opens the dustproof door at the corresponding position of the adapter 9 when the adapter 9 is inserted.

[0050] As shown in Figures 2-4, the dustproof door assembly provided in the present embodiment is arranged at the upper end of the track main body 7, which comprises a plurality of first dustproof doors 3, a dustproof door support 1 and elastic members 4; the dustproof door support 1 is arranged at least on one side of the track insertion opening 71, and the plurality of first dustproof doors 3 are slidably arranged on the dustproof door support 1 by the elastic members 4 and arranged along the track insertion opening 71 to close the track insertion opening 71 under the driving of the elastic members 4; each first dustproof door 3 is provided with an insertion driving inclined surface 33 corresponding to the driving end of the track insertion opening 71, and each first dustproof door 3 is further provided with a sliding driving inclined surface 31 on each side of the driving end, which is contacted by the adapter 9 when the adapter 9 is inserted, and under the condition that the continuous pressing force is applied to the driving inclined surface 33, the first dustproof door 3 slides back to the side away from the track insertion opening 71 to break the space for the adapter 9 to continue to be inserted. When the adapter 9 needs to be slid laterally, the pin of the adapter 9 is contacted with the sliding driving inclined surface 31 and a continuous pressing force is applied to the sliding driving inclined surface 31, and under the continuous pressing force, the first dustproof door 3 slides back to the side away from the track insertion opening 71 to break the space for the adapter 9 to continue to be slid.

[0051] As a further improvement, in the present embodiment, a second dustproof door 2 is further arranged on each side of the first dustproof door 3, a first linkage structure 34 is arranged on each side of the first dustproof door 3, a second linkage structure 24 is arranged on each side of the second dustproof door 2, and the second dustproof door 2 is unidirectionally linked with the first dustproof door 3 through the second linkage structure 24 and the first linkage structure 34 in the backstroke. The unidirectional linkage in the present embodiment means that when the first dustproof door 3 is driven by the adapter 9 to slide back to the side away from the track insertion opening 71, the adjacent second dustproof door 2 can be driven to slide away from the track insertion opening 71, and if the second dustproof door 2 is directly driven by the adapter 9 to slide away from the track insertion opening 71, the second dustproof door 2 will not link the adjacent first dustproof door 3, and the first dustproof door 3 will remain in its original position. The second dustproof door 2 is also provided with an elastic member 4, and the second dustproof door 2 closes the track insertion opening 71 under the driving of the corresponding elastic member 4. The driving end of the second dustproof door 2 is also provided with a second insertion driving inclined surface 21, and the adapter 9 can drive the second dustproof door 2 to slide back through the second insertion driving inclined surface 21.

[0052] Due to the existence of the sliding driving inclined surface 31, the gap between the two adjacent first dustproof doors 3 will be increased, and the second dustproof door 2 can be arranged to fill the gap to avoid the adapter 9 being stuck when being inserted.

[0053] Preferably, in the present embodiment, the elastic member 4 is used to restore the position of the first dustproof door 3 and the second dustproof door 2 to keep the closed state of the track insertion port 71. Therefore, the first dustproof door 3 and the second dustproof door 2 can both be provided with the elastic member 4 to restore the position, i.e. the elastic member 4 is arranged between the tail end of the first dustproof door 3 and the second dustproof door 2 and the dustproof door support 1. However, since the first dustproof door 3 can be unidirectionally linked to the second dustproof door 2, the second dustproof door 2 can also be unidirectionally linked to the first dustproof door 3 in the approach stroke, i.e. the second dustproof door 2 can be unidirectionally linked in the approach stroke, and when the second dustproof door 2 slides to close the track insertion port 71, the first dustproof door 3 adjacent to the second dustproof door 2 is also driven to slide to close the track insertion port 71. Therefore, in the present embodiment, only the elastic member 4 needs to be arranged at the tail end of the second dustproof door 2, i.e. the elastic member 4 is arranged between the dustproof door support 1 and the tail end of the second dustproof door 2, and the restoring force of the elastic member 4 of the second dustproof door 2 can drive the first dustproof door 3 to restore the position, and the first dustproof door 3 does not need to be provided with the elastic member 4.

[0054] In the present embodiment, as shown in FIGS. 5-13, the first linkage structure 34 is a first linkage surface 34 arranged on both sides of the first dustproof door 3, the second linkage structure 24 is a second linkage surface 24 arranged on both sides of the second dustproof door 2, and the first linkage surface 34 is arranged opposite to the second linkage surface 24. In the present embodiment, the bottom of both sides of the first dustproof door 3 is provided with a notch to form a first step, the side wall of the first step forms the first linkage surface 34, the top of both sides of the second dustproof door 2 is provided with a notch to form a second step, the side wall of the second step forms the second linkage surface 24, and the first dustproof door 3 is partially overlapped on the second dustproof door 2 to arrange the first linkage surface 34 and the second linkage surface 24 opposite to each other in the retreat stroke. Preferably, both sides of the first dustproof door 3 are V-shaped surfaces, the first linkage surface 34 is arranged perpendicular to the V-shaped surfaces of both sides of the first dustproof door 3, both sides of the second dustproof door 2 are also V-shaped surfaces, and the second linkage surface 24 is arranged perpendicular to the V-shaped surfaces of both sides of the second dustproof door 2, and the V-shaped surfaces of both sides of the first dustproof door 3 are in contact with the V-shaped surfaces of both sides of the second dustproof door 2.

[0055] As other embodiments, both sides of the first dustproof door 3 can also extend a protruding column as the first linkage structure 34, both sides of the second dustproof door 2 are provided with a second step, the side wall of the second step forms the second linkage structure 24, and the protruding column pushes the side wall of the second step to perform unidirectional linkage in the retreat stroke. In addition, both sides of the second dustproof door 2 can also extend a protruding column as the second linkage structure 24, both sides of the first dustproof door 3 are provided with a notch to form a first step, the side wall of the first step forms the first linkage structure 34, and when the first dustproof door 3 slides to retreat away from the track insertion port 71, the side wall of the first step pushes the protruding column of the second dustproof door 2 to perform unidirectional linkage in the retreat stroke.

[0056] In the assembled state, i.e. when the first dustproof door 3 and the second dustproof door 2 are closed to the track insertion opening 71 under the driving of the elastic member 4, the first linkage surface 34 can be in contact with the second linkage surface 24 or be arranged with a gap. In the contact state, the first dustproof door 3 retreats to the sliding distance which is the same as the second dustproof door 2. In the gap state, the second dustproof door 2 retreats to the sliding distance which is smaller than the first dustproof door 3, thereby reducing the opening range of the track insertion opening 71.

[0057] As shown in FIGS. 6-15, the first dustproof door 3 and the second dustproof door 2 are arranged alternately along the track insertion opening 71. When the first dustproof door 3 is driven by the adapter 9 as the main body, the first linkage surface 34 is arranged oppositely to the second linkage surface 24 of the second dustproof door 2 on both sides, and the first dustproof door 3 is driven by the adapter 9 to retreat to the sliding direction (i.e. away from the track insertion opening), thereby driving the second dustproof door 2 to retreat to the sliding direction. When the second dustproof door 2 is driven by the elastic member 4 to advance to the track insertion opening 71, the second dustproof door 2 drives the first linkage surface 34 (i.e. the first dustproof door 3) to advance to the initial position through the second linkage surface 24.

[0058] When the second dustproof door 2 is driven by the adapter 9, the second linkage surface 24 does not drive the first linkage surface 34, i.e. does not drive the first dustproof door 3 to slide.

[0059] In the embodiment, as shown in FIGS. 7-14, the dustproof door support 1 is arranged on the track main body 7. Optionally, the dustproof door support 1 and the insulating support of the track main body 7 are integrated, and of course, can be a split structure and assembled through a connecting structure. The dustproof door support 1 is provided with a plurality of first support units 10a and a plurality of second support units 10b. Each first dustproof door 3 is arranged in a first support unit 10a to slide, and each second dustproof door 2 is arranged in a second support unit 10b to slide.

[0060] In the embodiment, the first support unit 10a is provided with a first sliding surface 16 for the first dustproof door 3 to slide and a first limiting boss 15, and the bottom of the first dustproof door 3 is provided with a first sliding part 36 corresponding to the first sliding surface 16 and a first limiting sliding groove 35 corresponding to the first limiting boss 15. The second support unit 10b is provided with a second sliding surface 17 for the second dustproof door 2 to slide and a second limiting boss 13, and the bottom of the second dustproof door 2 is provided with a second sliding part 26 corresponding to the second sliding surface 17 and a second limiting sliding groove 25 corresponding to the second limiting boss 13.

[0061] In the embodiment, the first limiting sliding groove 35 is provided with a first limiting surface 351 corresponding to the end of the driving end of the first dustproof door 3, and the end of the first limiting boss 15 is limited to limit the retraction stroke of the first dustproof door 3; the second limiting sliding groove 25 is provided with a second limiting surface 251 corresponding to the end of the driving end of the second dustproof door 2, and the end of the second limiting boss 13 is limited to limit the retraction stroke of the second dustproof door 2.

[0062] In the embodiment, the first support unit 10a is provided with a first limiting pressing plate 18 opposite to the first sliding surface 16, the first limiting pressing plate 18 is provided with a third limiting sliding groove 14, and the upper part of the first dustproof door 3 is provided with a third limiting boss 32 corresponding to the third limiting sliding groove 14; the second support unit 10b is provided with a second limiting pressing plate 19 opposite to the second sliding surface 17, the second limiting pressing plate 19 is provided with a fourth limiting sliding groove 12, and the upper part of the second dustproof door 2 is provided with a fourth limiting boss 22 corresponding to the fourth limiting sliding groove 12.

[0063] In the embodiment, the elastic member 4 is a columnar spring, the tail end of the second dustproof door 2 is provided with a limiting protruding column 27, the second support unit 10b is provided with a limiting hole 11, one end of the columnar spring is sleeved on the limiting protruding column 27, and the other end is embedded in the limiting hole 11.

[0064] In the embodiment, the track insertion port 71 is provided with a dustproof door support 1 on both sides, a plurality of first dustproof doors 3 and second dustproof doors 2 are symmetrically arranged on the dustproof door supports 1 on both sides, and the first dustproof doors 3 and the second dustproof doors 2 on both sides jointly close the track insertion port 71.

[0065] Of course, when the width of the track insertion port 71 is small, the first dustproof door 3 and the second dustproof door 2 can be arranged on one side, that is, only the dustproof door support 1 needs to be arranged on one side, so that the material cost and the assembly and processing cost can be saved. Referring to FIG. 9, only the corresponding adapter 9 limiting structure needs to be arranged on the other side, and the adapter 9 drives the driving inclined surface of the first dustproof door 3 and the second dustproof door 2, so that the one-side dustproof door can also realize the closure of the track insertion port 71.

[0066] As shown in Fig. 15, the state of each dustproof door when the adapter 9 is inserted is shown. When the adapter 9 is inserted into the track insertion opening 71 and drives the first dustproof door 3-1, the bottom of the adapter 9 is placed on the driving slope of the first dustproof door 3-1, and under the action of external force, the first dustproof door 3-1 slides back, the first linkage surface 34 drives the second linkage surface 23, so that the adjacent second dustproof door 2-1 is driven to slide back, thereby opening a space for the adapter 9 to be inserted. Due to the action of the adapter 9, the first dustproof door 3-1 in contact with it exits the maximum gap, and at the same time, the second dustproof door 2-1 is also driven to exit the appropriate gap or the maximum gap. When the first dustproof door 3-1 is extruded to exit the maximum gap, it will drive the adjacent second dustproof door 2-1 to move backward appropriately, thereby leaving a certain space for the adapter 9 to slide along the two sides in the track. Since the adjacent first dustproof door 3-2 and the second dustproof door 2-1 are one-way linked, the backward sliding of the second dustproof door 2-1 will not drive the first dustproof door 3-2 to move, so the adjacent first dustproof door 3-2 still maintains a closed state, and the first dustproof door 3-1 and the second dustproof door 2-1 are located at the lower part of the adapter 9, and the adapter 9 will play a temporary dustproof role. When the adapter 9 needs to slide, the adapter 9 contacts the driving slope 31 during sliding, and under the action of continuous force, the adjacent first dustproof door 3-2 will slide back, thereby providing the space required for continuous sliding.

[0067] It should be noted that in the description of the present application, the terms "upper", "lower", "left", "right", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when in use, and are only for the convenience of description, and cannot be understood as indicating that the devices or elements referred to must have a particular orientation, therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only used for differentiation in description, and cannot be understood as indicating relative importance.

[0068] The above is a further detailed description of the present application in combination with specific preferred embodiments, and the specific implementation of the present application cannot be limited to these descriptions. For ordinary skilled persons in the technical field to which the present application belongs, without departing from the concept of the present application, a number of simple deductions or substitutions can be made, which should be regarded as falling within the protection scope of the present application.

Claims

1. A dustproof door assembly, comprising: A plurality of first dustproof doors (3), a dustproof door bracket (1) and an elastic member (4), wherein the dustproof door bracket (1) is arranged at least on one side of the track insertion opening (71), and is characterized in that: it also includes a plurality of second dustproof doors (2), the plurality of first dustproof doors (3) and the plurality of second dustproof doors (2) are slidably arranged on the dustproof door bracket (1), the first dustproof doors (3) and the second dustproof doors (2) are alternately arranged along the track insertion opening (71), and the track insertion opening (71) is closed under the drive of the elastic member (4); A first linkage structure (34) is provided on both sides of the first dustproof door (3), and a second linkage structure (24) is provided on both sides of the second dustproof door (2). The second dustproof door (2) is unidirectionally linked with the first dustproof door (3) in the retreat stroke through the second linkage structure (24) and the first linkage structure (34), that is, when the first dustproof door (3) slides back to the side away from the track insertion opening (71), it drives the adjacent second dustproof door (2) to slide away from the track insertion opening (71), and when the second dustproof door (2) slides away from the track insertion opening (71), the second dustproof door (2) will not link the adjacent first dustproof door (3), and the first dustproof door (3) remains in its original position.

2. The dustproof door assembly according to claim 1, characterized in that: The driving end of each first dustproof door (3) corresponding to the track insertion opening (71) is provided with an insertion driving inclined surface (33), and both sides of the driving end of each first dustproof door (3) are also provided with sliding driving inclined surfaces (31).

3. The dustproof door assembly according to claim 1, characterized in that: The driving end of each second dustproof door (2) is also provided with a second insertion-direction driving inclined surface (21).

4. The dustproof door assembly according to claim 1, characterized in that: The elastic member (4) is arranged between the tail end of the second dustproof door (2) and the dustproof door bracket (1); when the second dustproof door (2) slides to close the track insertion opening (71), it drives the adjacent first dustproof door (3) to slide together to close the track insertion opening (71); or, the elastic member (4) is provided between the tail ends of the first dustproof door (3) and the second dustproof door (2) and the dustproof door bracket (1).

5. The dustproof door assembly according to claim 1, characterized in that: The first linkage structure (34) is a first linkage surface (34) arranged on both sides of the first dustproof door (3), and the second linkage structure (24) is a second linkage surface (24) arranged on both sides of the second dustproof door (2), and the first linkage surface (34) and the second linkage surface (24) are arranged opposite to each other.

6. The dustproof door assembly according to claim 5, characterized in that: The bottom of both sides of the first dustproof door (3) is provided with a notch to form a first step, and the side wall of the first step forms a first linkage surface (34). The top of both sides of the second dustproof door (2) is provided with a notch to form a second step, and the side wall of the second step forms a second linkage surface (24). The two side portions of the first dustproof door (3) are superimposed on the second dustproof door (2), so that the first linkage surface (34) and the second linkage surface (24) are arranged relative to each other in the retreat stroke.

7. The dustproof door assembly according to claim 6, characterized in that: The two sides of the first dustproof door (3) are V-shaped surfaces, the first linkage surface (34) is arranged perpendicular to the V-shaped surfaces on both sides of the first dustproof door (3), the two sides of the second dustproof door (2) are also V-shaped surfaces, the second linkage surface (24) is arranged perpendicular to the V-shaped surfaces on both sides of the second dustproof door (2), and the V-shaped surfaces on both sides of the first dustproof door (3) are in contact with the V-shaped surfaces on both sides of the second dustproof door (2).

8. The dustproof door assembly according to claim 5, characterized in that: When the first dustproof door (3) and the second dustproof door (2) are driven by the elastic member (4) to close the rail insertion opening (71), a gap is provided between the first linkage surface (34) and the second linkage surface (24).

9. The dustproof door assembly according to claim 1, characterized in that: The dustproof door bracket (1) is provided with a plurality of first bracket units (10a) and a plurality of second bracket units (10b); each first dustproof door (3) is separately provided in a first bracket unit (10a) for sliding, and each second dustproof door (2) is separately provided in a second bracket unit (10b) for sliding.

10. The dustproof door assembly according to claim 9, characterized in that: The first bracket unit (10a) is provided with a first sliding surface (16) and a first limiting boss (15) for sliding the first dustproof door (3); the bottom of the first dustproof door (3) is provided with a first sliding portion (36) corresponding to the first sliding surface (16), and a first limiting sliding groove (35) opposite to the first limiting boss (15); The second bracket unit (10b) is provided with a second sliding surface (17) and a second limiting boss (13) for the second dustproof door (2) to slide, and the bottom of the second dustproof door (2) is provided with a second sliding portion (26) corresponding to the second sliding surface (17), and a second limiting sliding groove (25) corresponding to the second limiting boss (13).

11. The dustproof door assembly according to claim 10, characterized in that: The end of the first limiting sliding groove (35) corresponding to the driving end of the dustproof door (3) is provided with a first limiting surface (351), which forms a mutual limit with the end of the first limiting boss (15) to limit the retreat stroke of the first dustproof door (3); The second limiting sliding groove (25) is provided with a second limiting surface (251) at the end portion corresponding to the driving end of the second dustproof door (2), and forms a mutual limit with the end portion of the second limiting boss (13) to limit the retreat stroke of the second dustproof door (2).

12. The dustproof door assembly according to claim 11, characterized in that: The first bracket unit (10a) is provided with a first limiting pressure plate (18) arranged opposite to the first sliding surface (16); a third limiting sliding groove (14) is provided on the first limiting pressure plate (18); and a third limiting protrusion (32) corresponding to the third limiting sliding groove (14) is provided on the upper portion of the first dustproof door (3); The second bracket unit (10b) is provided with a second limiting pressure plate (19) arranged opposite to the second sliding surface (17), the second limiting pressure plate (19) is provided with a fourth limiting sliding groove (12), and the upper part of the second dustproof door (2) is provided with a fourth limiting protrusion (22) corresponding to the fourth limiting sliding groove (12).

13. The dustproof door assembly according to claim 11, characterized in that: The elastic member (4) is a columnar spring, a limiting boss (27) is provided at the tail end of the second dustproof door (2), and a limiting hole (11) is provided on the second bracket unit (10b), one end of the columnar spring is sleeved on the limiting boss (27), and the other end is embedded in the limiting hole (11).

14. The dustproof door assembly according to claim 1, characterized in that: Dustproof door brackets (1) are provided on both sides of the track insertion opening (71), and a plurality of dustproof doors (3) are symmetrically arranged on the dustproof door brackets (1) on both sides, and the dustproof doors (3) on both sides jointly close the track insertion opening (71).

15. A power rail comprising: A track body (7) and a track outer frame (5), wherein the track outer frame (5) is provided with a cavity (51), and the track body (7) is arranged in the cavity (51), characterized in that the track body (7) is also provided with a dustproof door assembly according to any one of claims 1 to 14.

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